2 Channel Power System Amplifier

SETTING THE GAIN

After completing the installation, follow these steps to set the Gain Control and then perform the Final System Checks.

1.Turn the Gain Control all the way counter-clockwise.

2.Turn the vehicle’s Ignition Switch to the ON position. Then turn the ON/OFF Switch on the source units to the ON position. Set all Tone or Equalization Controls to “flat” positions and turn Loudness off.

3.Play a CD or Tape and set the Volume Control at 75% of full level. NOTE: If the system uses an equalizer, set its frequency controls to “flat” positions.

4.Slowly increase the Gain Control. Stop when you hear a slight distortion of audio.

SETTING THE CROSSOVER

The Clarion APX201.2 and APX401.2 feature a fully adjustable crossover. To set the crossover, follow these steps.

1.Using the X-Over Mode Switch, select the desired mode: LP for Low Pass, HP for High Pass or OFF for Full Range.

2.Using the Freq (Hz) Control, select the desired frequency. If the desired frequency exceeds the range of the Freq (Hz) Control, press the Crossover Frequency Multiplier Switch to increase the value by a multiplier of 10.

• For example, 55Hz x 10 = 550Hz or 550Hz x 10 = 5.5kHz.

SETTING THE BASS BOOST

1.Initially set the Bass Boost control to its full left position (i.e. 0dB).

2.Listen to a variety of music styles (e.g. Rock, Rap, etc.) and slowly increase the Bass Boost control until a noticeable increase in low bass response is perceived.

3.Slowly adjust the Bass Boost control (up or down) to realize the best bass response.

CAUTION: If you hear a “pop” (due to speaker over-excursion), lower the Bass Boost to prevent speaker damage. If the system sounds muddy and dis- torted (due to amplifier clipping), lower Bass Boost to avoid shutdown from overheating.

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Clarion APX201.2, APX401.2 installation manual Setting the Gain, Setting the Crossover, Setting the Bass Boost
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APX201.2, APX401.2 specifications

The Clarion APX401.2 and APX201.2 are high-performance amplifiers designed to enhance the audio experience in vehicles, providing powerful sound and impressive clarity. These models boast advanced technologies and features that make them a popular choice among car audio enthusiasts.

One of the standout features of both the APX401.2 and the APX201.2 is their Class D amplifier topology. This technology allows for efficient power consumption, reduced heat generation, and a compact form factor, making these amplifiers ideal for modern vehicles with limited space. The Class D design provides high output power, ensuring that users can enjoy their music at high volumes without distortion.

The APX401.2 is a four-channel amplifier capable of delivering a maximum power output of 400 watts. This model is suitable for powering a full-range speaker system, allowing users to drive multiple speakers while maintaining sound quality. The built-in low-pass filter and high-pass filter options enable customization of sound frequencies, ensuring that the audio output is tailored to the listener's preferences and the speakers' capabilities.

On the other hand, the APX201.2 is a two-channel amplifier that provides up to 200 watts of maximum power. This model is perfect for those who want to power a pair of speakers or a subwoofer with precision and clarity. The APX201.2 also includes adjustable gain control, allowing users to optimize the input signal to achieve the best possible sound.

Both amplifiers feature a reinforced aluminum chassis that enhances durability and protects against vibrations, which are common in a mobile environment. The aesthetic design, characterized by a sleek and modern finish, ensures that these amplifiers can blend seamlessly with most car interiors.

In terms of connectivity, the APX401.2 and APX201.2 come equipped with RCA inputs, allowing for easy integration with aftermarket head units. Moreover, the amplifiers feature a compact design, making installation straightforward and accommodating in various vehicle types.

Finally, these amplifiers are engineered with a range of safety features, including short circuit protection, thermal protection, and overload protection. These safeguards ensure reliable operation, giving users peace of mind while enjoying their audio experience.

In summary, the Clarion APX401.2 and APX201.2 amplifiers offer high-quality sound output, advanced features, and a durable design, making them exceptional choices for anyone looking to elevate their vehicle's audio system. Whether powering multiple speakers or a dedicated subwoofer, these amplifiers deliver performance and reliability, ensuring an enjoyable listening experience on the road.
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